10420 Shaw Street
There are only two dated stamps by this maker in the entire city of Oakland. The other is from 1944.
1945 – J. S. Mattos Concrete Co.
17 November 20151945 – Frank Lopes
16 November 2015
1942 – Ransome Company
15 November 2015
9949 Voltaire Avenue
The Ransome Company has been around from more than a century and still does business out of San Leandro, yet a mere handful of its sidewalk stamps are extant. My guess is that sidewalks were only an occasional sideline.
1942 – Frank Lopes
14 November 2015
10500 Byron Avenue
Here’s an exemplary strike of Frank Lopes’s stamp, with a truly legible date.
1940 – Hennig
13 November 2015
9949 Voltaire Avenue
My previous example from 1940 was very hazy; not this one.
1940 – C. Fischer
12 November 2015
10327 Shaw Street
Mr. Fischer was very inconsistent with his name.
1940 – Fischer
11 November 2015
2726 Frazier Avenue
I have no idea why C. Fischer had to draw the last letter with a stick.
Oakland Underfoot 